A human bone discovered near the Tucson home ofmissing 84-year-old Nancy Guthriehas been formally declared prehistoric, offering no relief to investigators still searching for the mother of NBC'sTodayco-anchor Savannah Guthrie, now missing for more than three months.

On Thursday, 7 May 2026, authorities arrived at an area approximately 15 miles from Nancy Guthrie's home after a YouTube livestreamer spotted what appeared to be bone fragments in the desert terrain. The discovery triggered an immediate law‑enforcement response and sent a fresh wave of fear through the already anxious community of online followers tracking the case. Remains found near the intersection of Craycroft and River roads were confirmed to be human by the Tucson Police Department, but no criminal investigation will follow.

The Tucson Police Department moved quickly to contextualise the discovery. 'The bone found near Craycroft and River was determined to be human,' the department's statement read. 'This will be a prehistoric anthropological investigation. The University of Arizona's Anthropology department and the Pima County Office of the Medical Examiner assisted. This is not a criminal investigation.'

According to the Tucson Police Department, the University of Arizona's Anthropology department was specifically called in for what is believed to be a prehistoric anthropological investigation, with the Pima County Office of the Medical Examiner assisting. The involvement of the university's anthropology department signals that authorities concluded very early that the remains were of significant age, consistent with the region's well‑documented history of ancient indigenous settlements.

According to a law‑enforcement source, the remains are considered 'prehistorical' and not connected to the Nancy Guthrie investigation. They will be collected by researchers for additional analysis. The finding draws a clear line between the bone discovery and the active missing‑persons case, but it does nothing to bring investigators any closer to finding Nancy Guthrie herself.

#NancyGuthrie#BringNancyHome#FindNancyGuthrieMore photos of the bone found by AJ@ajwysopalduring his live stream today.The pipe was sticking out near to it.AJ did NOT touch anything at or near the area.👇🏼👇🏼👇🏼pic.twitter.com/5FTn89mu3P

Nancy Guthrie disappeared on 1 February 2026 from her home in the Catalina Foothills, a suburb of Tucson, Arizona. Evidence recovered at the residence indicated that she had been taken against her will, and Pima County Sheriff Chris Nanos stated that he believed she had been abducted.

Police arrived at Guthrie's home around noon on 1 February after relatives reported her missing. They found the back door propped open and a trail of blood drops near her front door. Her doorbell camera disconnected at approximately 01:47, though authorities were able to recover some footage showing a masked, armed suspect at her front door.

At 02:12, home security software detected a person in front of one of her cameras, but investigators could not obtain video. At 02:28, her pacemaker app disconnected from her phone. The precise sequence of events in those early‑morning hours remains one of the most critical unresolved threads in the investigation.

Police have not yet identified the masked intruder recorded on her Nest doorbell camera. He was carrying an Ozark Trail brand hiking backpack, available at Walmart, and was wearing long sleeves, gloves and a holstered pistol. A retired FBI agent has publicly stated that he believes the blood pattern on the front porch is consistent with a single abductor.

Source: International Business Times UK